Propeller assembly for marine engine

Details Propeller assembly for marine engine Propeller assembly for marine engine

1997-09-16

1999-10-19

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Ambient fluid or exhaust gas directed through hub, fairing...

416134R, 416245A, 464182, 440 83, B63H 120

Patent

active

059677511

ABSTRACT:
A propeller device includes a shaft rotatably supported in a marine engine, and a hub secured to the shaft and having three or more axially extending keys. A propeller housing includes three or more pairs of lobes for forming keyways and for engaging with the keys of the hub. The keyways include a narrower outer end for preventing the housing from disengaging from the hub. Three or more stops are disposed between the pairs of lobes. A retainer disc includes a number of angularly spaced ears for engaging with the lobes and the stops and for preventing the propeller housing from being disengaged from the propeller shaft.

REFERENCES:
patent: 2471982 (1949-05-01), Shulda
patent: 2974502 (1961-03-01), Radcliff
patent: 3045763 (1962-07-01), Perrott
patent: 4778419 (1988-10-01), Bolle et al.
patent: 4911663 (1990-03-01), Meier
patent: 5201679 (1993-04-01), Velte, Jr. et al.
patent: 5252028 (1993-10-01), LoBosco et al.

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